When your car's Check Engine light comes on, it's usually accompanied by a sinking feeling in the pit of your stomach. The light could mean a costly problem, like a bad catalytic converter, or it could be something minor, like a loose gas cap.
If you experience any bleeding period after this 20 days, it will probably be the real period. This normally comes at about 4 to 6 weeks after the miscarriage.
How long early miscarriage bleeding lasts will depend on various factors. It mainly depends on the time required by the body to get rid of the pregnancy tissues. For some pregnant women, the time taken is about a week, while for others the time taken is around three weeks.